Amethyst Spirit Quartz (Cactus Quartz, Porcupine Quartz) Spirit Quartz is an unusual variety of quartz that is found only in Magaliesberg mountains in the Gauteng Province of South Africa. It harmonizes the aura, chakra points, and physical body. Use to: Merge with Higher Self. Balance the Crown Chakra. Purify & Protect. Release fear.